CVE-2026-58016Suited to automated attack · CISA

Glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml"

CVSS score

7.5

EPSS probability

%0.5

Risk score

0.0

Published

3 mo ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

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Vulnerability description

DayBreach CVE AI Research

CVE-2026-58016 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

A flaw was found in GLib. A state confusion issue exists in g_dbus_node_info_new_for_xml() in the gio/gdbusintrospection.c file when processing malformed D-Bus introspection XML, specifically with a `node` element nested within other elements like `method`, `signal`, `property` or `arg`. This issue can cause an unsigned integer overflow and lead to an out-of-bounds read, resulting in a denial of service.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-58016 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	gnome	glib	View
2	Red Hat	Red Hat Enterprise Linux 10	View
3	Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	View
4	Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	View
5	Red Hat	Red Hat Enterprise Linux 8	View
6	Red Hat	Red Hat Enterprise Linux 8	View
7	Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	View
8	Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	View
9	Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	View
10	Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On	View
11	Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	View
12	Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	View
13	Red Hat	Red Hat Enterprise Linux 9	View
14	Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	View
15	Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	View
16	Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	View
17	Red Hat	Cert Manager support for Red Hat OpenShift release 1.17	View
18	Red Hat	Cert Manager support for Red Hat OpenShift release 1.17	View
19	Red Hat	Cert Manager support for Red Hat OpenShift release 1.17	View
20	Red Hat	Cert Manager support for Red Hat OpenShift release 1.17	View
21	Red Hat	Cert Manager support for Red Hat OpenShift release 1.17	View
22	Red Hat	Cert Manager support for Red Hat OpenShift release 1.18	View
23	Red Hat	Cert Manager support for Red Hat OpenShift release 1.18	View
24	Red Hat	Cert Manager support for Red Hat OpenShift release 1.18	View
25	Red Hat	Cert Manager support for Red Hat OpenShift release 1.18	View
26	Red Hat	Cert Manager support for Red Hat OpenShift release 1.18	View
27	Red Hat	Cert Manager support for Red Hat OpenShift release 1.20	View
28	Red Hat	Cert Manager support for Red Hat OpenShift release 1.20	View
29	Red Hat	Cert Manager support for Red Hat OpenShift release 1.20	View
30	Red Hat	Cert Manager support for Red Hat OpenShift release 1.20	View
31	Red Hat	Cert Manager support for Red Hat OpenShift release 1.20	View
32	Red Hat	Cert Manager support for Red Hat OpenShift release 1.20	View
33	Red Hat	Cert Manager support for Red Hat OpenShift release 1.20	View
34	Red Hat	Cert Manager support for Red Hat OpenShift release 1.20	View
35	Red Hat	Red Hat Discovery 2	View
36	Red Hat	Red Hat Discovery 2	View
37	Red Hat	Red Hat Insights proxy 1.5	View
38	Red Hat	Red Hat OpenShift AI 3.0	View
39	Red Hat	Red Hat OpenShift AI 3.0	View
40	Red Hat	Red Hat OpenShift AI 3.0	View
41	Red Hat	Red Hat OpenShift AI 3.0	View
42	Red Hat	Red Hat OpenShift AI 3.0	View
43	Red Hat	Red Hat OpenShift AI 3.2	View
44	Red Hat	Red Hat OpenShift AI 3.2	View
45	Red Hat	Red Hat OpenShift AI 3.2	View
46	Red Hat	Red Hat OpenShift AI 3.2	View
47	Red Hat	Red Hat OpenShift AI 3.2	View
48	Red Hat	Red Hat OpenShift AI 3.2	View
49	Red Hat	Red Hat OpenShift AI 3.4	View
50	Red Hat	Red Hat Update Infrastructure 5	View
51	Red Hat	Red Hat Update Infrastructure 5	View
52	Red Hat	Red Hat Update Infrastructure 5	View
53	Red Hat	Red Hat Update Infrastructure 5	View
54	Red Hat	Red Hat Update Infrastructure 5	View
55	Red Hat	Red Hat Update Infrastructure 5	View
56	Red Hat	Red Hat Update Infrastructure 5	View
57	Red Hat	Red Hat Update Infrastructure 5	View
58	Red Hat	Red Hat Enterprise Linux 10	View
59	Red Hat	Red Hat Enterprise Linux 6	View
60	Red Hat	Red Hat Enterprise Linux 9	View
61	Red Hat	Red Hat Hardened Images	View
62	gnome	glib	View
63	redhat	enterprise linux	View
64	redhat	enterprise linux	View
65	redhat	enterprise linux	View
66	redhat	enterprise linux	View
67	redhat	enterprise linux	View

Total affected vendors: 3|Products: 67

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
9.1	CVSS V31	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H	NVD
7.5	CVSS V31	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD
7.5	CVSS V3_1	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CVE CNA
7.5	CVSS 3.x	—	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U	Microsoft MSRC

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

1 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

reference

Yama veya çözüm referansı

Open source

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Apply the official update named in the evidence only to the matching product and version.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-58016 is associated with the following CWEs:

CWE-191: Common Weakness Enumeration Entry CWE-191

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-58016 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden

PermissionsGerekmiyor

UserGerekmiyor

Official Sources and Advisories

RHSA-2026:42063vendor-advisory RHSA-2026:42089vendor-advisory RHSA-2026:42090vendor-advisory RHSA-2026:44481vendor-advisory RHSA-2026:46836vendor-advisory RHSA-2026:49512vendor-advisory RHSA-2026:51175vendor-advisory RHSA-2026:51176vendor-advisory RHSA-2026:51177vendor-advisory RHSA-2026:51181vendor-advisory

CVSS Vector Radar Chart

7.5 / 10

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone required

User InteractionNone required

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)None

Availability (Erişilebilirlik)High

Yama doğrulandı

1 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

gnome

Red Hat

redhat

Weakness Type (CWE & CAPEC)

CWE-191

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